QUOTE (JFG @ Sep 29 2006, 07:37 PM)

Don't try to time your entrance and exit in asset classes. I recall a study recently
showing if you were out of the market only a few weeks over a 20 year period that
you misssed most of the moves in the market.
This is one of the great misleading myths of stock investing. Take all the weeks over a 20 year period and sorted them in terms of percent change in the stock market. Now look what would happen if you "missed" the top 20 weeks.... or top 10% of the days using days as the basis. Of course you would miss out on a lot. But, those top weeks did not occur back to back. The exagerated impact of this myth represents results if you got out of stocks just before each short burst up. Great example, valid issue, but very misleading about the actual impact of not being in the market for brief periods. I think this is a favorite myth of the brokerage business.
Myth busted? Maybe, but there is an element of truth that gets lost in the myth.
The real issue is not "missing" the top weeks or days, but the problem in predicting when you should be IN or OUT. I have about 25+ years of experience with investing. I have never met anyone who regularly predicts swings or turning points in stocks, interest rates, bonds or the economy. There are just too many variables, too many unpredictable events. Katrina and WTC terrorism are just some of the unpredictable events of the last 5 years. You can add elections, war, political upheavals and just the ebb and flow of any market economy. Sure lots of folks claim to have great track records... but not often documented by anyone else.
What is true on the macro level is also true at the sector/industry level and among companies in a specific industry. Yeah, Billy Miller at Legg Mason is exceptional. So was Peter Lynch for a decade or two. Warren Buffet seemed to have the golden touch for a long time. And I know of one friend who probably batts around .650 on stock picks - which is very exceptional... when he talks, I really do listen. But that is just a few folks who consistently picked winners over an extended period of time.
I have concluded that for most folks, the percent you assign various assets pools accounts for the bulk of the differences between most portfolios. Folks with high equity (aka stocks) percents tend to have the best returns over the long haul. Those with a significant portion in bonds are a couple of percent lower. Those with cash/CDs a little lower still. Within the high percent of stocks, those with a slight bias towards grow have over many periods (but not recently as with value and commodity based firms) done a little better.
Another aspect of this myth is that it assumes that the individuals goal is to
"Beat the Market". If a couple starts early, saves a good chunk of their income, and makes reasonable investments - they should get very good results, perhaps multiple millions for retirement. Investing is a game of walks, singles, bunts to advance the runner, and occasionally an in the gap double. Folks that are constantly swinging for the fences - taking big risks on long shot investments - tend to strike out a lot. Maybe the problem here is that everything in our society seems to be happening faster all the time, yet investing is more like watching paint dry.
When you invest in a company or a stock mutual fund, you a making a wager on capitalism. Over a long period of time, companies tend to grow and increase their profits. Incentives for hard work, ability to take advantage of your inventions, problem solvers, innovators... out number the Enrons and Worldcoms.
Rant off.
Look for long run success in investing - time is your friend. Expect modest risk taking to pay off because the stocks are underpinned by the success of capitalism. No guarentees, just a long track record of probabilities.